带自动幅度控制器的宽带LC压控振荡器，用于IEEE 802.22认知无线电接收机

2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS) Pub Date : 2015-12-01 DOI:10.1109/ICECS.2015.7440376

M. Kanoun, H. Daoud, H. Mnif, M. Loulou

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引用次数: 3

摘要

本文研究了一种带和不带自动幅值控制器的LC压控振荡器的设计。为了实现IEEE 802.22中规定的宽带调谐范围，VCO核心集成了一个开关电容阵列(SCA)。采用幅度控制技术来稳定整个频带的振荡幅度。带AAC电路的LC压控振荡器可实现63%的调谐范围，在整个调谐范围内，在1 MHz频率偏移时显示相位噪声水平为-126.2 dBc/Hz至-122.67 dBc/Hz。带AAC的振荡器的平均功耗为21 mW。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Wide band LC VCO with automatic amplitude controller for IEEE 802.22 cognitive radio receiver

This paper deals with the design of an LC Voltage Controlled Oscillator (LC VCO) with and without an Automatic Amplitude Controller (AAC). In order to achieve a wide band tuning range specified in IEEE 802.22 the VCO core incorporates a Switched Capacitor Array (SCA). An amplitude controlling technique is used to stabilize the oscillation amplitude over the frequency band. The LC VCO with an AAC circuit achieves 63% of tuning range and displays phase noise levels from -126.2 dBc/Hz to -122.67 dBc/Hz at 1 MHz frequency offset within the entire tuning range. The average power consumption of the oscillator with an AAC is 21 mW.

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来源期刊

2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)

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